CH3OH(g)  CO(g) + 2 H2(g)   H = +90.7 kJ (a) Is the reaction exothermic or endothermic? exothermic endothermic     (b) Calculate the amount of heat transferred when 45.0 g of CH3OH(g) are decomposed by this reaction at constant pressure. H = ____kJ (c) If the enthalpy change is 18.0 kJ, how many grams of hydrogen gas are produced? ____g

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CH3OH(g)  CO(g) + 2 H2(g)   H = +90.7 kJ

(a) Is the reaction exothermic or endothermic?

exothermic

endothermic    
(b) Calculate the amount of heat transferred when 45.0 g of CH3OH(g) are decomposed by this reaction at constant pressure.
H = ____kJ
(c) If the enthalpy change is 18.0 kJ, how many grams of hydrogen gas are produced?
____g
(d) How many kilojoules of heat are released when 11.5 g of CO(g) reacts completely with H2(g) to form CH3OH(g) at constant pressure?
H = ____kJ
(e) Calculate E when 750.0 g of CH3OH(g) completely reacts at a constant temperature of 300 K and constant pressure of 0.95 atm. R = 8.314 J/mol*K and R = 0.08206 atm*L/mol*K

_____kJ HopHelpCh5N1

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